the update worked brilliantly! i'm back up and running:) Used my ipad to do the upgrade (thankfully you're app runs there:)) so didn't have to find a backup phone. Really impressive experience -congrats!

Sorry for the late reply, you can read this post to update your iOS system, if you still have problems, please feel free to contact Roav customer support via Live Chat in the Roav VIVA app or on the Roav website [Mon-Fri 9am-5pm (PT)].